import java.awt.*; import javax.swing.*; class Draw extends JComponent { public void paint(Graphics g) { Graphics2D g2 = (Graphics2D) g; GradientPaint gp = new GradientPaint(0,0,Color.BLUE,250,250,Color.RED); // g2.setColor(Color.MAGENTA); // g2.fillRect(0,0,150,150); g2.setPaint(gp); g2.fillRoundRect(20,20,250,250,50,50); // g2.fillRect(20,20,250,250); } } class GFrame extends JFrame { public G..